Anal for Starfire

"Most human girls make a big fuss about this, but us Tamaranians have 100% body control. I can make what you call my 'asshole' as loose as any human pussy. Shall I demonstrate?"

You nod, having no words.

Starfire puts your cock into her asshole and, yeah, it's really damn loose. You fill her up in an instant, something you can't do with most pussies.

On cue, it tightens up like a fleshy vice! It stops just short of hurting- just enough to show you how tight it can be.

"Does it feel like my first time," Starfire asks sensually.
"Yeah, like my first girlfriend in the back of my Dodge Stratus."
"That's what I've been told, although it is usually a better Car."
"Hey, I wasn't always a super-rich, superhero Doctor."

You both share a laugh and then she turns serious when the fucking starts.

Holding you down with one hand, she rides your cock in her asshole like a bucking bronco! She's so much fun to watch.

She cums from this after about a minute, at which point she escalates things...

She grabs you by the hair and pulls you up a bit, leaning in to kiss you hard on the lips! You answer it as best you can, before she lets you go.

Over the next ten minutes, she cums three more times, each time repeating her action of pulling you in for a kiss. You decide to ask her about that later, after the embarrassment of this whole thing wears off.

You finally cum, shooting your load harmlessly into her alien pussy.

"Did...the formula wear off," you ask, regaining your strength after a moment, "Are you yourself again?"
"What do you mean? That powder? That didn't affect me at all."
"Oh, so you...oh, that means. I need to work on something then."

You try to move, but Starfire is not budging. She gives you a stern look.

"Sorry...I mean, I have to work on something when you're done."

She smiles.